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    Target Detection System and Method
    1.
    发明申请
    Target Detection System and Method 有权
    目标检测系统和方法

    公开(公告)号：US20150109163A1

    公开(公告)日：2015-04-23

    申请号：US14381561

    申请日：2013-03-04

    申请人： QINETIQ LIMITED

    发明人： Christopher John Peacock

    IPC分类号： G01S13/04

    CPC分类号： G01S13/532 ,  G01S7/41 ,  G01S13/0209 ,  G01S13/04 ,  G01S13/64 ,  G01S15/18

    摘要： Some embodiments are directed to methods of detecting a target that include: receiving signals reflected from a target of interest, the signals having a bandwidth large enough to provide a plurality of range cells along an expected target, and processing the received signal(s) by (i) determining the phases of contiguous groups of range cells, the group size selected to approximate to sizes of targets of interest, (ii) phase-shifting the returns within a group to increase constructive interference and thereby signal power; and (iii) combining the phase shifted returns to produce phase-adjusted combined returns, and performing a detection on those combined returns. Some embodiments may provide enhanced target detection capabilities. The process may be repeated for different potential target sizes, and may be performed either on real time data, or off-line on recorded data, and is applicable to both radar and sonar.

    摘要翻译： 一些实施例涉及检测目标的方法，其包括：接收从感兴趣的目标反射的信号，所述信号具有足够大的带宽以沿着预期目标提供多个范围单元，并且通过 （i）确定范围单元的连续组的相位，所选择的组大小近似于感兴趣的目标的大小，（ii）使组内的返回相移以增加建设性的干扰，从而信号功率; 和（iii）组合相移返回以产生相位调整的组合返回，并对这些组合的返回进行检测。 一些实施例可以提供增强的目标检测能力。 可以针对不同的潜在目标尺寸重复该过程，并且可以在实时数据上执行，或者在记录数据上执行离线，并且可应用于雷达和声纳。

    NETWORKED SONAR OBSERVATION OF SELECTED SEABED ENVIRONMENTS
    3.
    发明申请
    NETWORKED SONAR OBSERVATION OF SELECTED SEABED ENVIRONMENTS 有权
    选择的SEABED环境的网络声音观察

    公开(公告)号：US20100128567A1

    公开(公告)日：2010-05-27

    申请号：US12694927

    申请日：2010-01-27

    申请人： Timothy W. Acker ,  Assad E.K. Ebrahim ,  James J. Dawson

    发明人： Timothy W. Acker ,  Assad E.K. Ebrahim ,  James J. Dawson

    IPC分类号： G01S15/89

    CPC分类号： G01S15/02 ,  G01S7/003 ,  G01S15/003 ,  G01S15/04 ,  G01S15/18 ,  G01S15/89

    摘要： A sonar transducer network for observing a seabed includes a controller. A first transducer assembly includes a first acoustic transducer to convert a first ping to a first electrical signal; and a first transducer processor to receive a first electrical signal from the first acoustic transducer to generate the first transducer data. At least one second transducer assembly is spaced apart from the first transducer assembly. The second transducer assembly includes a second acoustic transducer to convert a second ping to a second electrical signal. The second transducer processor receives the second electrical signal from the second acoustical transducer to generate second transducer data. A network bus communicates first transducer data and second transducer data with the controller.

    摘要翻译： 用于观察海底的声纳传感器网络包括控制器。 第一换能器组件包括：第一声换能器，用于将第一ping转换成第一电信号; 以及第一换能器处理器，用于从第一声换能器接收第一电信号以产生第一换能器数据。 至少一个第二换能器组件与第一换能器组件间隔开。 第二换能器组件包括第二声换能器，用于将第二乒乓转换为第二电信号。 第二换能器处理器从第二声学换能器接收第二电信号以产生第二换能器数据。 网络总线与控制器通信第一传感器数据和第二传感器数据。

    Ultrasonic measuring apparatus which minimizes the number of digital values treated by processing means
    4.
    发明授权
    Ultrasonic measuring apparatus which minimizes the number of digital values treated by processing means 失效
    超声波测量装置，其最小化由处理装置处理的数字值的数量

    公开(公告)号：US5569853A

    公开(公告)日：1996-10-29

    申请号：US146404

    申请日：1993-11-01

    申请人： Jean-Pierre Mignot

    发明人： Jean-Pierre Mignot

    IPC分类号： A61B8/00 ,  A61B8/08 ,  G01B17/02 ,  G01N29/38 ,  G01S15/18 ,  G01N29/04

    CPC分类号： A61B8/0858 ,  G01N29/38 ,  G01S15/18 ,  G01N2291/02854 ,  G01N2291/044

    摘要： An ultrasonic measuring apparatus that includes an ultrasonic transducer for emitting ultrasonic pulses at a predetermined repetition frequency towards an object having a plurality of walls such as a blood vessel, receiving echoes reflected from such walls, and producing an echo signal having a plurality of elementary echo components (E.sub.ant, E.sub.post). A digitizer digitizes the echo signal into a series of digital values that are stored in a buffer memory under control of a circuit. A computer transfers the series of digital values stored in the buffer memory into a memory. The computer is programmed to process the digital values stored in the memory in the period between consecutive pulses and to remove a group of the digital values digitized between consecutive elementary components (E.sub.ant, E.sub.post) from those digital values to be treated between such consecutive pulses.

    摘要翻译： 一种超声波测量装置，包括：超声波换能器，用于以预定的重复频率朝向具有多个壁的物体（例如血管）发射超声波脉冲，接收从这些壁反射的回波，并产生具有多个基本回波的回波信号 组件（Eant，Epost）。 数字转换器将回波信号数字化为一系列数字值，存储在电路控制下的缓冲存储器中。 计算机将存储在缓冲存储器中的一系列数字值传送到存储器中。 计算机被编程为在连续脉冲之间的周期内处理存储在存储器中的数字值，并且从在这些连续脉冲之间要处理的那些数字值中除去在连续基本分量（Eant，Epost）之间数字化的一组数字值。

    Method and apparatus for pulsed doppler ultrasound beam-forming
    5.
    发明授权
    Method and apparatus for pulsed doppler ultrasound beam-forming 失效
    用于脉冲多普勒超声波束形成的方法和装置

    公开(公告)号：US5564424A

    公开(公告)日：1996-10-15

    申请号：US497061

    申请日：1995-06-30

    申请人： Lin-Xin Yao

    发明人： Lin-Xin Yao

    IPC分类号： A61B8/06 ,  G01S7/52 ,  G01S15/18 ,  G01S15/58

    CPC分类号： A61B8/06 ,  G01S15/582 ,  G01S7/52046 ,  G01S15/18

    摘要： This invention addresses the aliasing and range ambiguity artifact trade-off occurring in pulsed doppler ultrasound applications. By increasing pulse repetition frequency to avoid aliasing and by implementing non-coinciding transmit and receive beam-patterns, range ambiguity effects are reduced. Separate transmit and receive apertures define respective transmit and receive beam-patterns. These separate transmit and receive beam-patterns intersect at a primary range gate. Secondary range gates may occur along the receive beam-pattern. The transmit beam-pattern does not intersect such secondary gates. Weaker dispersed ultrasound energy may intersect the secondary gates, however, and reflect back to the receive aperture. Relatively stronger samples are obtained from the primary range gate than from the secondary range gates. In effect the geometry of the transmit and receive beam-patterns maximizes the strength of the response from the primary gate and reduces the strength of the response from the secondary gates.

    摘要翻译： 本发明解决在脉冲多普勒超声应用中发生的混叠和范围模糊伪影权衡。 通过增加脉冲重复频率以避免混叠和通过实现不一致的发送和接收波束图案，减小了范围模糊度的影响。 单独的发射和接收孔限定相应的发射和接收波束图案。 这些单独的发射和接收波束图案在主范围门口相交。 次级范围门可以沿着接收波束图案发生。 发射波束图案不与这种二级门相交。 然而，较弱的分散超声能量可能与次级门相交，并反射回接收孔径。 从一级范围栅极获得的相对强度比二级范围栅极更强。 实际上，发射和接收波束图案的几何形状使得来自主栅极的响应的强度最大化并且减小了来自次级栅极的响应的强度。

    Object detector for detecting buried objects
    6.
    发明授权
    Object detector for detecting buried objects 失效
    用于检测埋藏物体的物体探测器

    公开(公告)号：US5563848A

    公开(公告)日：1996-10-08

    申请号：US302279

    申请日：1994-09-08

    申请人： Andrew J. Rogers ,  Charles G. Don

    发明人： Andrew J. Rogers ,  Charles G. Don

    IPC分类号： F41H11/12 ,  G01N29/11 ,  G01N29/38 ,  G01S7/52 ,  G01S15/02 ,  G01S15/04 ,  G01S15/18 ,  G01S15/88 ,  G01V1/00 ,  G10K11/22 ,  G01N29/00

    CPC分类号： G01N29/38 ,  F41H11/12 ,  G01N29/11 ,  G01S15/02 ,  G01S15/88 ,  G01V1/001 ,  G10K11/22 ,  G01S15/04 ,  G01S15/18 ,  G01S7/52036

    摘要： An object detector for detecting metallic or non-metallic objects is disclosed which comprises a sound source such as a speaker (12) for generating impulse short sound bursts. A tube (16) conducts the acoustic signal from the speaker to the ground and at least one microphone M1-M3 is utilised for detecting reflections from the ground. A reflection from a buried object is compared with a reference signal which may be obtained from another microphone M1, M2 or earlier in time from the same microphone M3. The reflected and reference signals are subtracted to provide a difference signal and a difference signal is correlated with the original acoustic signal to provide an indication of an object. Time windows may be set to enable analysis of different depths to be obtained.

    摘要翻译： 公开了一种用于检测金属或非金属物体的物体检测器，其包括用于产生脉冲短音突发的诸如扬声器（12）的声源。 管（16）将来自扬声器的声信号传导到地面，并且使用至少一个麦克风M1-M3来检测来自地面的反射。 将来自掩埋物体的反射与可以从相同麦克风M3在时间上从另一麦克风M1，M2或更早获得的参考信号进行比较。 减去反射和参考信号以提供差分信号，并且差信号与原始声信号相关以提供对象的指示。 可以设置时间窗口以使得能够获得要获得的不同深度的分析。

    Doppler-type ultrasonic diagnostic apparatus
    7.
    发明授权
    Doppler-type ultrasonic diagnostic apparatus 失效
    多普勒型超声诊断仪

    公开(公告)号：US5485844A

    公开(公告)日：1996-01-23

    申请号：US243874

    申请日：1994-05-17

    申请人： Takanobu Uchibori

    发明人： Takanobu Uchibori

    IPC分类号： A61B8/06 ,  G01S7/52 ,  G01S15/18 ,  G01S15/89

    CPC分类号： G01S15/18 ,  G01S15/8979 ,  G01S7/5206

    摘要： A Doppler-type ultrasonic diagnostic apparatus is provided for smoothing a Doppler spectrum. In the apparatus, a tomographic image of a diagnostic portion of an object being examined is obtained, the diagnostic portion including a fluid in motion, and a range gate is placed at a position of the fluid on the tomographic image. The apparatus comprises an element for transmitting an ultrasonic beam signal for the diagnostic portion and receiving an ultrasonic echo signal reflected by the fluid, an element for converting the ultrasonic echo signal into a corresponding electrical echo signal, an element for extracting a Doppler signal from the electrical echo signal, the the Doppler signal being formed by the fluid flowing at the position of the range gate, an element for calculating data of a Doppler spectrum being composed of a plurality of instantaneous spectra each including a plurality of Doppler frequency components on the basis of the extracted Doppler signal, an element for smoothing the data of the Doppler spectrum, and an element for displaying the smoothed data of the Doppler spectrum.

    摘要翻译： 提供了一种用于平滑多普勒频谱的多普勒型超声波诊断装置。 在该装置中，获得被检查物体的诊断部分的断层图像，包括运动中的流体的诊断部分和范围门被放置在断层图像上的流体的位置。 该装置包括用于传送用于诊断部分的超声波束信号并接收由流体反射的超声波回波信号的元件，用于将超声波回波信号转换成相应的电回声信号的元件，用于从该超声回波信号中提取多普勒信号的元件 电回波信号，多普勒信号由在范围门的位置流动的流体形成，用于计算多普勒频谱的数据的元件由多个瞬时谱组成，每个瞬时谱包括多个多普勒频率分量 提取的多普勒信号，用于平滑多普勒频谱的数据的元件以及用于显示多普勒频谱的平滑数据的元件。

    Ultrasonic level detector
    8.
    发明授权
    Ultrasonic level detector 失效
    超声波液位探测器

    公开(公告)号：US5131271A

    公开(公告)日：1992-07-21

    申请号：US509136

    申请日：1990-04-16

    申请人： Kevin M. Haynes ,  Steven E. Margison

    发明人： Kevin M. Haynes ,  Steven E. Margison

    IPC分类号： G01F23/296 ,  G01S7/52 ,  G01S13/18 ,  G01S15/18

    CPC分类号： G01F23/2962 ,  G01S13/18 ,  G01S15/18 ,  G01S7/52004 ,  Y10S367/908

    摘要： An ultrasonic level detector includes a transducer for generating and receiving bursts of sonic energy at a surface to locate the position of the surface. In response to receiving a burst of energy reflected from the surface, the transducer generates an electrical signal, which is then supplied to a variable gain amplifier. After amplification, the electrical signal is supplied to a comparator and a peak detector. The comparator generates a timing signal upon the electrical signal exceeding a threshold. A window generator circuit generates a receive window that controls whether the electrical signal is supplied to the comparator and the magnitude of the threshold on the comparator. The peak detector determines the maximum amplitude of the electrical signal, which may be used to vary the amplifier gain and the number of pulses included in an excitation signal which drives the transducer. Upon receipt of the timing signal, a microprocessor determines the distance between the transducer and the detected surface.

    摘要翻译： 超声波液位检测器包括用于在表面产生和接收声能的突发的换能器，以定位表面的位置。 响应于接收到从表面反射的能量脉冲串，换能器产生电信号，然后将其提供给可变增益放大器。 放大后，将电信号提供给比较器和峰值检测器。 比较器在电信号超过阈值时产生定时信号。 窗口发生器电路产生接收窗口，该窗口控制电信号是否被提供给比较器，以及比较器上的阈值的大小。 峰值检测器确定电信号的最大幅度，其可以用于改变放大器增益和包括在驱动换能器的激励信号中的脉冲数。 在接收到定时信号时，微处理器确定换能器与检测到的表面之间的距离。